Move kernel baseline tests to front_end.

pkg/front_end/test/fasta/classes.dart.outline.expect

Index: pkg/front_end/test/fasta/classes.dart.outline.expect
diff --git a/pkg/front_end/test/fasta/classes.dart.outline.expect b/pkg/front_end/test/fasta/classes.dart.outline.expect
deleted file mode 100644
index 7871b62252067a4e079f657ba210f7ca37cbe688..0000000000000000000000000000000000000000
--- a/pkg/front_end/test/fasta/classes.dart.outline.expect
+++ /dev/null
@@ -1,20 +0,0 @@
-library;
-import self as self;
-import "dart:core" as core;
-
-class A extends core::Object {
-  final field core::int x;
-  final field core::int y;
-  constructor •(dynamic y) → void
-    ;
-  method method() → dynamic
-    ;
-}
-class B extends self::A {
-  constructor •(dynamic x) → void
-    ;
-  method method() → dynamic
-    ;
-}
-static method main() → dynamic
-  ;